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System and method for adapting code rate

a code rate and code rate technology, applied in the field of digital communications, can solve the problems of reducing the efficiency of the communications system, inefficiently using resources, waste of allocated resources, etc., and achieves the effect of improving error performance, improving code rate of transmission, and efficient utilization of resources

Active Publication Date: 2015-02-10
FUTUREWEI TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]One advantage disclosed herein is that the code rate of a transmission may be adjusted to more efficiently utilize resources to meet performance requirements. As an example, if better error performance is desired, the code rate of the transmission may be increased. While if communications system conditions are relatively error-free, the code rate of the transmission may be decreased to free up more resources to support other transmissions.
[0012]A further advantage of exemplary embodiments is that a technique for detecting the adapted transmission is provided which may simplify the detection of the adapted transmission without placing too much burden on a receiving communications device.

Problems solved by technology

The unused resources mean that the assigned resources are wasted, thereby reducing communications system efficiency.
Inefficiently used resources may consume resources that may otherwise be assigned to other transmissions and reduce a number of users supported in the communications system, data rate of the communications system, reliability of the communications system, and so forth.
Thereby making the transmission more prone to errors than need be.

Method used

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Examples

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Embodiment Construction

[0033]The making and using of the current example embodiments are discussed in detail below. It should be appreciated, however, that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0034]The present invention will be described with respect to example embodiments in a specific context, namely a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) compliant communications system supporting relay nodes (RN). The invention may also be applied, however, to other communications systems that supports or does not support RNs but allows for transmissions at different code rates, such as communications systems that are compliant with the WiMAX, IEEE 802.16, 3GPP LTE-Advanced, and so forth, technical standards as well as those that are not compliant t...

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Abstract

A system and method for adapting code rate are provided. A method for a first communication device to transmit a resource assignment to at least one communication device includes assigning at least one transmission resource to transmit the resource assignment, adapting a code rate of an encoded payload based on the at least one transmission resource and a threshold, thereby producing an adapted payload, and transmitting the adapted payload.

Description

[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 357,840, filed on Jun. 23, 2010, entitled “Rate-Matching Techniques for R-PDCCH,” which application is hereby incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates generally to digital communications, and more particularly to a system and method for adapting code rate.BACKGROUND[0003]Generally, it is desirable to fully occupy resources assigned for a transmission. The unused resources mean that the assigned resources are wasted, thereby reducing communications system efficiency. Inefficiently used resources may consume resources that may otherwise be assigned to other transmissions and reduce a number of users supported in the communications system, data rate of the communications system, reliability of the communications system, and so forth.[0004]Furthermore, due to the unused resources, the transmission may be transmitted at a lower code rate than possible if all of the ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04B7/14H04B7/212H04W4/00H04L27/28H04W72/00H04J11/00H04L1/00H04L5/00H04W72/04
CPCH04L1/0067H04L5/0044H04L5/0094H04W72/042H04W72/23H04W4/12H04W28/22H04W72/04H04B7/15542H04L1/0002H04L1/0013H04W72/044
Inventor SOONG, ANTHONYSARTORI, PHILIPPECLASSON, BRIANLI, ZHONGFENGGONG, ZHENGWEI
Owner FUTUREWEI TECH INC
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